Celestron COSMOS 90GT
 In 2014, Celestron
released a short-run line of computerized scope called the COSMOS 90GT
(Celestron part number 22094). This is the direct predecessor to the
Astro Fi
series discussed in my book, The
NexStar User's Guide II. As with the Astro Fi, the COSMOS 90GT was
sold without a hand control, although it is compatible with the NexStar version
4, NexStar+ and StarSense hand controls.
Also like the Astro Fi, it has a built-in WiFi module allowing the scope to
be controlled via an app running on a smartphone or tablet (Android or iOS).
The manual discusses an app called Cosmos Celestron Navigator which has
since been replaced by Celestron's SkyPortal app. It can also be
controlled with SkySafari Plus or SkySafari Pro.
Beyond that, the main differences between the COSMOS 90GT and Astro Fi are
that the COSMOS only has a single AUX port compared to the Astro Fi's two, and
COSMOS has an older WiFi module that has shorter range than the one found in the
Astro Fi.
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